面板中执行composer 出错

Exception trace:
() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Util/Http/CurlDownloader.php:305
Composer\Util\Http\CurlDownloader->tick() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Util/HttpDownloader.php:371
Composer\Util\HttpDownloader->countActiveJobs() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Util/HttpDownloader.php:342
Composer\Util\HttpDownloader->wait() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Util/HttpDownloader.php:93
Composer\Util\HttpDownloader->get() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Repository/ComposerRepository.php:1098
Composer\Repository\ComposerRepository->fetchFile() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Repository/ComposerRepository.php:847
Composer\Repository\ComposerRepository->loadRootServerFile() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Repository/ComposerRepository.php:527
Composer\Repository\ComposerRepository->hasProviders() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Repository/ComposerRepository.php:349
Composer\Repository\ComposerRepository->loadPackages() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/DependencyResolver/PoolBuilder.php:330
Composer\DependencyResolver\PoolBuilder->loadPackagesMarkedForLoading() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/DependencyResolver/PoolBuilder.php:195
Composer\DependencyResolver\PoolBuilder->buildPool() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Repository/RepositorySet.php:229
Composer\Repository\RepositorySet->createPool() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Installer.php:398
Composer\Installer->doUpdate() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Installer.php:247
Composer\Installer->run() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Command/InstallCommand.php:137
Composer\Command\InstallCommand->execute() at phar://D:/BtSoft/panel/script/composer.phar/vendor/symfony/console/Command/Command.php:245
Symfony\Component\Console\Command\Command->run() at phar://D:/BtSoft/panel/script/composer.phar/vendor/symfony/console/Application.php:835
Symfony\Component\Console\Application->doRunCommand() at phar://D:/BtSoft/panel/script/composer.phar/vendor/symfony/console/Application.php:185
Symfony\Component\Console\Application->doRun() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Console/Application.php:317
Composer\Console\Application->doRun() at phar://D:/BtSoft/panel/script/composer.phar/vendor/symfony/console/Application.php:117
Symfony\Component\Console\Application->run() at phar://D:/BtSoft/panel/script/composer.phar/src/Composer/Console/Application.php:125
Composer\Console\Application->run() at phar://D:/BtSoft/panel/script/composer.phar/bin/composer:67
require() at D:\BtSoft\panel\script\composer.phar:24

install [--prefer-source] [--prefer-dist] [--prefer-install PREFER-INSTALL] [--dry-run] [--dev] [--no-suggest] [--no-dev] [--no-autoloader] [--no-scripts] [--no-progress] [--no-install] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--apcu-autoloader-prefix APCU-AUTOLOADER-PREFIX] [--ignore-platform-req IGNORE-PLATFORM-REQ] [--ignore-platform-reqs] [--] [<packages>]...

'BT-Exec-Completed'